“To all those people who have been waiting to see me perform at the Capital Summertime Ball today, I flew into the UK last night to appear in my home country in front of my family, friends, and most importantly my UK fans,” it read. "Unfortunately my anxiety that has haunted me throughout the last few months around live performances has gotten the better of me... with the magnitude of the event I have suffered the worst anxiety of my career.

"I cannot apologise enough but I want to be honest with everyone who has patiently waited to see me, I promise I will do my best to make this up to everybody I've let down today.

"I know those who suffer anxiety will understand and I hope those who don't can empathises with my situation."

So far, the star is yet to perform a concert to promote his debut album, ‘Mind Of Mine’, and the only performance he has given was on the US talk show, ‘The Tonight Show With Jimmy Fallon’.

His next scheduled performance is set to take place in Dubai this October.